Mechanical movement.



H. A. W. WOOD.

m- 1 P2121 Amon FILED JAI'I: MOVEMENT" 05. BENEWED NOV. 10I 1909. 965974Patented Aug. 2,1910.

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H. A. w. Woon.

MBGHANIGAL MOVEMENT.

Y APPLICATION FILED JULY 27, 1905. BENEWBD NOV. 10, 1909. 965,974,Patented Aug. 2, 1910.

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H. A. W. WOOD.

Y MECHANICAL MOVEMENT. APPLICATION FILED JULY Z7, 1.905. BENEWED H017'.10 l 1909.

965,974. y Patented Aug. 2, 1910.

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UNITED STATES PATENT OFFICE.

I[I`.E`11\TR:3. A. WISEVOOD, OF'NE'W YORK, N..Y., ASSIGNORTO CAMPBELLPRINTING PRESS & MANUFACTURING COMPANY, OF' NEW YORIL. N. Y., ACORPORATION OF NEW YORK.

MECHANICAL MOVEMENT.

Application filed July 27, 19.05, serial No. 271,556.

To all whom 'it may concern:

Be it' known that-I, HENRY A. WISE Woon, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented a new and useful Mechanical Movement, of which thefollowing is a specification.

The object of this invention is to provide a new and improved mechanicalmovement for converting rotary motion into reciprocating motion. Themovement has been particularly designed as a mechanism for reciprocatingthe beds of printing machines.

The invention has relation to that form off mechanism wherein a mainmechanism for reciprocating the bed at a constant speed is combined witha reversing mechanism which slows down, stops, and starts the bed in theopposite direct-ion.

The object of the invention is to improve that class of mechanismwherein the time ofthe constant speed movement equals the time of thereversing movement, and wherein the movement is designed to work on thetwo-revolution principle and have a half-turn crank-reverse..

In the present invention some of the parts shown in Patents No. 481,128,dated August 16,-1892; No. 559,016, dated April 12, 1896; and; No.581,839, dated May 4, 1897, granted in the name of Henry A. Wise Wood,have been employed. The mechanisms shown in these prior patents,however, were designed to operate only on the threerevolution princi le.The parts shown in this case have een re-designed and recombined toutilize the advantages of the two-revolution principle above specified.

The mechanism is illustrated in ther accompanying three sheets ofdrawings.

Referring to said drawings, Figure 1 is a side elevation, partly insection, of the mechanism. Fig. 2 is a sectional end view. Figs. 3 and 4are a side and front elevation of the latch mechanism on an enlargedscale. Figs. 5 to 7 are diagrammatic views illustrating the reversingaction at one end ofv the bed. Fig. 8 is a detail view illustrating theaction in Fig. 7. Figs. 9 to 11 inclusive are diagrams illustrating thereversing action at the other end of the bed, and Fig. 12 is a detailview illustrating the action in Fig.. 11.

Referring to the drawings' and in detail, A designates the main shaft ofthe ma- Specication of Letters Patent.

` Patented A110. 2, 1910.

Renewed November. 10, 1909. Serial No. 527,304.

chine which car-ries the driving` gear B, which also constitutes t-herevolving member of the reversing mechanism.

C designates the reciprocating 4bed or member which has upper and lowerracks 10 and 11 attached thereto.

D designates the impression. cylinder of the machine which may be gearedtothe main 'shaft A in any desired way common in printing` machinery.

The main shaft, driving gear, and upper and lower racks are arranged asshown in said patentsto Henry A. WVise Wood, except that the racks 1()yand 11 are made substantially one-half the length of a pitchcircumference of the driving pinion instead of being equal to a pitchcircumference of the driving pinion as in said prior patents. The mainshaft is raised and lowered by any suitable mechanism, as shown in saidprior patents, to engage alternately with said racks 10 and 11 to makeup a main driving mechanism. Projecting from the inner face of thedriving pinion are two wrist-pins 12 and 13. These wrist-pinsare set180o apart, and substantially on the pitch line of said gear. Verticalways 14 are carried by the bed-hanger which supports the lower rack 11.Fitted to slide on said ways 14 are blocks 15. Each'block 15 has a outaway socket for one of the wrist-pins to engage.

A'swinging jaw 16 is mounted on a pivot 17 in each block, this swingingjaw being set to cooperate with the socket in the block to hold thewrist-pin. The swinging jaws normally tend by their weight to swing downfrom the socket, as shown in Fig. 3.. Each swinging jaw is held inclosed or operative position by a pivoted spring-pressed trigger 18which engages a pin 180 on said swinging jaw, and holds the same inplace whenbrought into operative position.. Each swinging jaw 16 isprovided with an extending arm 19 which carries a roll 20. A cam 21 isprovided to operate ,the left-hand swinging jaw, and a. cam 22 isprovided to operate the right-hand swinging jaw, as hereinafterdescribed. y

The blocks have bearings 23 on their rear side. Journaled in thesebearings is a shaft 24 which connects the blocks together. Verticalracks 25-'25 are secured to each end of the rack-hanger. Pinions 26`26are arranged on the ends of said shaft 24, and engage said verticalracks 25-25L This will forni a squaring mechanism and will constrain thetwo blocks to move together up and down on the ways 111.

At the right-hand end of the bed is arranged a spring-pressed trigger 27which has an extending arm carrying a roll 28j `This trigger 1s arrangedto engage a catch 29 on the right-hand block 15 so as to hold the blocksin their highest position. This roll 28 is set to coperate with astationary cam 30. To release the trigger 13 mounted on the left-handblock 15 from its engagement with the pin 180 mounted on the swingingjaw 16, a projection 31 is secured on a lever 32 pivoted to the rackframe, as shown on enlarged scale in Fig. 8. The projection 31 isforceddownwardly by a spring 33. A stationary cam 34 is placed to operate theprojection 31. These parts are arranged so that as shown in F ig. 7, theprojection 31 will be lifted by the horizontal movement of the bed tothe left to release the trigger 18, and to allow the swinging jaw tofall down clear of the wrist-pin. This construction of the projection'ispreferably employed to operate from the horizontal movement of the bed,as the vertical component of the movement of the wristpin at the timethe same should be released is small. Similarly the trigger 18 of theright-hand block is released by a projection 35 mounted on a pivotedlever 3G controlled by a spring 37 and operated by a cam 38 as shown inFig. 12.

The operation can be followed by referring to the diagrammatic views.

Referring first to Fig. 5, the driving gear B is shown in position whereit just leaves the upper rack 10, and the main driving mechanism asbecoming inoperative. In this position of parts the wrist-pin 12 hasengaged the left-hand block, and the swinging jaw 16 on said block hasbeen brought into operative position by its roller running on the cam21. As this operation takes place the vtrigger 27 is released from theright-hand block 15 by its roll 28 running on the cam 30. Nowl as thewrist-pin makes a quarter turn from the position shown in Fig. 5, to theposition shown in Fig. 6, the bed will be retarded and brought to astate of rest at its right-hand eXtreme. Now during the next quarterrevolution of the wristpin 12 the bed will be started from its extremeright-hand position and brought up to its constant speed forwardmovement to the left, bringing' the parts-to the position shown in Fig.7. l/Vhen the parts reach this position, the swinging jaw of theleft-hand block 15 will be released by the projection 31 as beforedescribed, and the driving-gear B will engage the lower rack 11 andstart the bed on its constant speed forward movement to the left. Thisconstant speed or forward movement will take a half turn of the driv-A"lution of the wrist-pin 13 the bed will be ing gear. In Fig. 9 thisconstant speed movement is shown as just completed. In this position ofparts the right-hand block 15 will have engaged the wrist-pin 13 and theswinging jaw on the right-hand block will have been brought into andlocked in operative position by its roll working o'n the cam 22. Thiswill lock the wrist-pin 13 to the bed. Now during the next quarterrevoretarded and brought to a` state of rest at its yleft-hand eXtreme,as shown in Fig. 10. Now during the next quarter revolution of thewrist-pin 13 the bed will be started on its return movement to the rightat a speed gradually increasing from Zero up to the constant speed. Thiswill bring the parts to the position shown in Fig. 11, where theswinging jaw on the right-hand block will be released by means of theoperation of the projection 35 before described. This will release thewrist-pin 13 from the right-hand block 15, and as this operation takesplace, the driving-gear B will engage into the upper rack 10. As theblocks assume their Lipper position, as shown in Fig. 11, they will belocked andheld in their upper position by the trigger 27. Now during thenext half revolution of the driving-gear the bed will be given itsconstant speed right-hand or return movement by the engagement betweensaid driving gear B and the upper rack 10. During this constant speedmovement the blocks will be locked in their raised positions, so thatwhen this movement is completed the parts will assume the position showninv Fig. 5, completing the cycle. The blocks 1515 thus remain in theirhighest position for the constant speed return movement, and in theirlowest position for the constant speed forward movement. By thisarrangement the mechanism can be designed to work on the two-revolutionprinciple as hereinbefore pointed out. j

The details and arrangements herein described may be greatly varied by askilled mechanic without departing from the scope of my invention asexpressed in the claims.

Having thus fully described my invention, what I claim and desire tosecure by Letters Patent is 1. In a mechanical movement, the combinationof the reciprocating bed or member, a main driving mechanism for givingthe same its constant speed movements, and a reversing mechanismcomprising two wristpins mounted on a revolving member, blocks mountedto move o n said bed, and means for engaging the wrist-pins with saidblocks.

2. In a mechanical movement, the combination of the reciprocating bed ormember, a main driving mechanism for giving the same its constant speedmovement, and a reversing mechanism comprising two wristv pins mountedon a revolving member, blocks mounted so as to be capable of verticalmovement on the bed, a squaring mechanism connecting said blocks to movetogether, and means for locking the wrist-pins to t-he blocks.

3. In a mechanical movement, the combination of the reciprocating bed ormember, a main driving mechanism for giving the same its constant speedmovements, and a reversing mechanism comprising two wristpins mounted onthe same revolving element, blocks mounted so as to be capable ofvertical motion on the bed, swinging jaws for locking the wrist-pins tosaid blocks, and means for holding and releasing said swinging jaws.

4. In a mechanical movement, the combination of the reciprocating bed ormember,

a main driving mechanism for giving the same its constant speedmovements, and a reversing mechanism comprising two revolvingwrist-pins, blocks mounted so as to move together vertically on saidbed, means for engaging the wrist-pins with said blocks, and'means forholding the blocks in raised position during the constant speed movementof the bed in one direction.

5. In a mechanical movement, the combination of the reciprocating bed ormember, a main driving mechanism for giving the same its constant speedmovements, and a reversing mechanism comprising two revolvingwrist-pins, blocks mounted so as to move together vertically on saidbed, a swinging jaw arranged to coperate with each block, stationarycams for throwing said swinging jaws into operative position, triggersfor holding the jaws in operative position, and means for releasing thetriggers.

6. In a mechanical movement, the combination of the reciprocating bed ormember, a main driving mechanism for giving the same its constant speedmovements, and a reversing mechanism comprising two revolvingwrist-pins, blocks mounted so as to move together vertically on the bed,swinging jaws coperating with said blocks, a trigger for holding theblocks in their raised positions during one constant speed movement, andmeans for releasing said trigger.

7. In a mechanical movement, t-he combination of the reciprocating bedor member, a main driving mechanism for giving the same its constantspeed movements, and a reversing mechanism comprising two wristpins, twoblocks connected to move together vertically on said bed, means forlocking the wrist pins to and for releasing the same from said blocks, atrigger connected to hold the blocks in raised position for a const-antspeed movement, the parts being arranged so that each constant speedmovement and each reversing movement will take a half turn of thewrist-pins.

In testimony whereof I have hereunto set my hand, in the presence of twosubscribing witnesses.

H. A. VISE WOOD.

Vitnesses t ANNIE B. WALTERS, W. K. STE'rsoN.

